
// 设置导航条 返回箭头 颜色

.topBg .van-nav-bar {
  background-color: transparent;
  .van-icon-arrow-left, .van-nav-bar__title {
    color: #fff;
  }
  &.van-hairline--bottom::after {
    border-bottom: 0;
  }
}
.topBg {
  width: 100%;
  height: 3.93rem;
  background: linear-gradient( 180deg, #2892FF 0%, rgba(40,146,255,0) 100%);
}